java--Timer Issues

Timer issues

Timers are basic components, whether it is User space program development, or kernel space program development, often need to have a timer as the base component support. The implementation of a timer requires the following four basic behaviors: Add timer, cancel timer, timer check, expire execution.
Design a timer and implement the following three basic behaviors, a function prototype is given, you can design data structures and implementations in any programming language, and support as many timers as efficiently as possible:
Add Timer: Perform a target operation after a specific time interval
Input 1:interval timer time, Unit ms
Enter 2:expiryaction target operation
Return: Timer Id
Starttimer (Interval, expiryaction), Timerid
Cancel Timer
Input: Timer Id
Stoptimer (Timerid)
Timer check
The function is called once every 10ms of the system
Pertickbookkeeping ()

Words not much to say, directly on the code:

　　1) Timer.java:

1 Importjava.util.ArrayList;2 3  Public classTimer {4 5     Private LongInterval//timer time, Unit MS6     PrivateString expiryaction;//Target Operation7     Private intTimerid;//Timer ID8     Private LongWaitTime;//Timer Wait Time9     Ten     //constructor Function One      PublicTimer () { A          This. WaitTime = 0; -     } -      the     //Adding Timers -      Public intStarttimer (LongInterval, String expiryaction,intID) { -          This. Interval =interval; -          This. expiryaction =expiryaction; +          This. Timerid =ID; -         returnTimerid; +     } A      at     //Cancel Timer -      Public voidStoptimer (intTimerid, arraylist<timer>timer) { - Timer.remove (Timerid); -     } -      -     //Timer Check in      Public voidpertickbookkeeping () { -         if( This. Interval > This. WaitTime) to              This. waitTime + = 10; +         Else{ -SYSTEM.OUT.PRINTLN ("Timer" + This. timerid+ ":" + This. expiryaction); the              This. WaitTime = 0; *         } $     }Panax Notoginseng      -      the      Public LongGetinterval () { +         returninterval; A     } the      Public voidSetInterval (Longinterval) { +          This. Interval =interval; -     } $      PublicString getexpiryaction () { $         returnexpiryaction; -     } -      Public voidsetexpiryaction (String expiryaction) { the          This. expiryaction =expiryaction; -     }Wuyi      Public intGettimerid () { the         returnTimerid; -     } Wu      Public voidSettimerid (intTimerid) { -          This. Timerid =Timerid; About     } $      Public LongGetwaittime () { -         returnWaitTime; -     } -      Public voidSetwaittime (LongwaitTime) { A          This. WaitTime =WaitTime; +     } the}

2) Dotimer.java:

1 Importjava.util.ArrayList;2 ImportJava.util.Iterator;3 4  Public classDotimerextendsThread {5 6     Private StaticArraylist<timer>timerlist;7     8      Public Static voidMain (string[] args) {9         TenTimerlist =NewArraylist<timer>(); OneTimer timer1 =NewTimer (); ATimer1. Starttimer (3000, "I am the first timer, wait 3 seconds", 0); -Timer Timer2 =NewTimer (); -Timer2. Starttimer (4000, "I am the second timer, wait 4 seconds", 1); the Timerlist.add (timer1); - Timerlist.add (timer2); -          -         //Public void Run () {} +         NewThread () { - @Override +              Public voidrun () { A                  while(true){ atIterator<timer> it =timerlist.iterator (); -                      while(It.hasnext ()) { - It.next (). Pertickbookkeeping (); -                     } -                     Try { -Sleep (10); in}Catch(interruptedexception e) { -                         //TODO auto-generated Catch block to e.printstacktrace (); +                     } -                 } the             } * }.start (); $ timer1. Stoptimer (Timer1.gettimerid (), timerlist);Panax Notoginseng          -     } the}

Thank you for your suggestions for improvement, Xiao Li will choose a better way to improve their own procedures!

　　

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java--Timer Issues